Ultra violet unit for protecting sterile systems



FIG. 1 is a left elevational view of a ultra violet unit for protectingsterile systems, the right side being a mirror of the left side;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof; and,

FIG. 5 is a rear elevational view thereof.

The ornamental design for a ultra violet unit for protecting systems, asshown and described.